![Reference values for spirometry in Chinese aged 4–80 years]()
Reference values for spirometry in Chinese aged 4–80 yearsJian, Wenhua; Gao, Yi; Hao, Chuangli; Wang, Ning; Ai, Tao; Liu, Chuanhe; Xu, Yongjian; Kang, Jian; Yang, Lan; Shen, Huahao; Guan, Weijie; Jiang, Mei; Zhong, Nanshan; Zheng, Jinping · Journal of Thoracic Disease · 2017